ASTM C302-95(2007)
(Test Method)Standard Test Method for Density and Dimensions of Preformed Pipe-Covering-Type Thermal Insulation
Standard Test Method for Density and Dimensions of Preformed Pipe-Covering-Type Thermal Insulation
SIGNIFICANCE AND USE
Density measurements of preformed pipe insulation are useful in determining compliance of a product with specification limits and in providing a relative gage of product weights. For any one kind of insulation some important physical and mechanical properties, such as thermal conductivity, heat capacity, strength, etc., bear a specific relationship with its density; however, on a density basis, these properties are not directly comparable with those for other kinds of material.
The physical dimensions of preformed pipe insulation are important quantities not only for determining the density of the pipe insulation but also for determining the conformance to specifications. The use of multilayer insulations is common, and the dimensions are necessary to ensure proper nesting of the layers.
SCOPE
1.1 This test method covers the determination of the dimensions and density, after conditioning, of preformed pipe insulation.
1.1.1 Procedure A is applicable to sections of one-piece pipe covering or to sections of segmental pipe covering that can be joined together concentrically and measured as one-piece.
1.1.2 Procedure B is applicable to segmental pipe covering where each section of material is measured.
1.1.3 Procedure C is applicable to sections of one-piece pipe covering, such as soft foam or mineral wool materials, where it is possible to penetrate the material.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: C302 − 95(Reapproved 2007)
Standard Test Method for
Density and Dimensions of Preformed Pipe-Covering-Type
Thermal Insulation
This standard is issued under the fixed designation C302; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope E691 Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
1.1 This test method covers the determination of the dimen-
sions and density, after conditioning, of preformed pipe insu-
3. Terminology
lation.
3.1 Definitions—See Terminology C168.
1.1.1 ProcedureAis applicable to sections of one-piece pipe
covering or to sections of segmental pipe covering that can be
4. Summary of Test Method
joined together concentrically and measured as one-piece.
4.1 The material to be tested is conditioned to constant
1.1.2 Procedure B is applicable to segmental pipe covering
weight.Thedensityofthepipeinsulationiscalculatedfromthe
where each section of material is measured.
conditioned mass and measured dimensions.
1.1.3 ProcedureCisapplicabletosectionsofone-piecepipe
covering, such as soft foam or mineral wool materials, where
5. Significance and Use
it is possible to penetrate the material.
5.1 Density measurements of preformed pipe insulation are
1.2 The values stated in inch-pound units are to be regarded
useful in determining compliance of a product with specifica-
as the standard. The values given in parentheses are for
tion limits and in providing a relative gage of product weights.
information only.
For any one kind of insulation some important physical and
1.3 This standard does not purport to address all of the
mechanical properties, such as thermal conductivity, heat
safety concerns, if any, associated with its use. It is the
capacity, strength, etc., bear a specific relationship with its
responsibility of the user of this standard to establish appro-
density; however, on a density basis, these properties are not
priate safety and health practices and determine the applica-
directly comparable with those for other kinds of material.
bility of regulatory limitations prior to use.
5.2 The physical dimensions of preformed pipe insulation
are important quantities not only for determining the density of
2. Referenced Documents
the pipe insulation but also for determining the conformance to
2.1 ASTM Standards:
specifications. The use of multilayer insulations is common,
C167 Test Methods for Thickness and Density of Blanket or
and the dimensions are necessary to ensure proper nesting of
Batt Thermal Insulations
the layers.
C168 Terminology Relating to Thermal Insulation
C670 Practice for Preparing Precision and Bias Statements
6. Apparatus
for Test Methods for Construction Materials
6.1 Flexible Steel Rule, graduated in ⁄32-in. or 1.0-mm
C870 Practice for Conditioning of Thermal Insulating Ma-
intervals.
terials
6.2 Scale, with sufficient capacity to weigh the specimen to
within 0.01 lb or 5 g.
This test method is under the jurisdiction ofASTM Committee C16 on Thermal 6.3 Pin Probe, as defined in Test Methods C167.
Insulation and is the direct responsibility of Subcommittee C16.32 on Mechanical
6.4 Steel Rule, graduated in ⁄32-in. or 1.0-mm intervals.
Properties.
Current edition approved March 1, 2007. Published April 2007. Originally
6.5 Stainless Steel Shim Stock, 2 in. (75 mm) wide, longer
approved in 1952. Last previous edition approved in 2001 as C302 – 95 (Reap-
than the circumference of the pipe insulation, and 0.010 in.
proved 2001)´ . DOI: 10.1520/C0302-95R07.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or (0.25 mm) thick.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.6 Pi Tape, graduated to read a diameter directly to the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. nearest ⁄32 in. or 1.0 mm.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C302 − 95 (2007)
6.7 Pieces of Pipe, on which to install the pipe insulation 8. Conditioning
under test (only required for Procedure 3).
8.1 Remove any jacket on the specimen unless it is of a type
that would cause disintegration of the specimen upon removal.
7. Test Specimen
8.2 Condition the specimen to constant mass in accordance
7.1 The test specimen shall be of a commercial size. with Practice C870.
7.2 If sectional pipe segments are to be used for Procedures
9. Procedures
1 or 3, the sections shall be joined together to form a hollow
cylinder.
Procedure A
9.1 One-Piece Pipe Section: 9.1.3 Measure the circumference of the specimen in six
locations, uniformly spaced along its length, to the nearest ⁄32
9.1.1 Weigh the conditioned pipe section to the nearest 0.01
in. or 1.0 mm.
lb or 5 g.
9.1.4 Measure the wall thickness at six locations, uniformly
9.1.2 Measure the length of the specimen in six locations,
spaced, three on each end of the specimen, to the nearest ⁄32 in.
uniformly spaced around its circumference, to the nearest ⁄32
or 1.0 mm.
in. or 1.0 mm.
Procedure B
9.2 Segmental Pipe Sections: 9.2.4 Measure the length of the specimen in six locations,
9.2.1 Weigh the conditioned segmental pipe section to the
uniformlyspacedaroundtheoutersurface,tothenearest ⁄32in.
nearest 0.01 lb or 5 g.
or 1.0 mm.
9.2.2 Measure the length of the arc formed by the outer
9.2.5 Measure the wall thickness at six locations, uniformly
surface of the specimen at six locations, uniformly spaced
spaced, one on each end and two on each side of the spec
...
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